A repeating cycle of abnormally warm days followed by periods of deep marine layer and high humidity is affecting row crop vegetables from California’s Salinas Valley and the surrounding West Coast growing regions. A low-pressure system will keep temperatures at or slightly below normal range with spotty drizzle over the next couple of mornings, but temperatures will begin warming again by this weekend and are forecast to create another heatwave by mid-next week.

The conditions are nearly ideal for certain insect populations to flourish. In particular, diamondback moth in cole crops such as broccoli, and aphids and thrips in lettuce and tender leaf items. All three of these insects have been particularly challenging for growers to manage (see photos). Aside from these pests, Markon inspectors are also monitoring supplies for weather-related challenges that can include, but may not be limited to the following:

• Bottom rot/decay
• Hollow core & pin rot in broccoli
• Increased mildew pressure
• Increased soil disease and/or plant virus challenges
• Internal burn
• Long core/seeder
• Shortened shelf-life potential in commodity and value-added items
• Sun scald

Markon inspectors will continue to closely monitor all major crops from these regions and work with suppliers to secure the best quality available for Markon orders. As always, maintaining the cold chain throughout distribution will be critical for maximizing quality and shelf-life

Please contact your Markon Account Manager for more information.

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